When Apple first launched iOS 6.0, it was touted as the fasted adoption of any operating system thus far. Millions of users quickly updated their iPhones, iPads and iPod touches to take advantage of Siri, the new Maps app, Passbook, and more. There were, however, a few late adopters who were able to smirk with self-satisfaction once word got out that the Maps app was a total failure. On Dec. 12, Google launched its long-awaited Google Maps for iPhone and Apple’s iOS 6 adoption shot up another 29 percent.

According to MoPub, who monitors over 1 billion ad impressions per day across 12,000 apps and dozens of ad networks, there was a 29 percent increase in iOS 6 downloads five days after Google Maps was released.

Another iOS 6 adoption report from Chitika showed only 0.2 percent growth immediately after the launch, but TechCrunch noted that Chitika does not monitor as many ad impressions, apps, or networks so their information is not as comprehensive as MoPub’s. Additionally, the amount of time it takes to download iOS 6.0 (and the subsequent Wi-Fi fix in iOS 6.0.1) likely caused some to put off the update until the weekend.

MoPub CEO Jim Payne told TechCunch,“We observed since the launch of Google Maps for iOS 6 a 30 percent increase in unique iOS 6 users, and we think it’s related to Google Maps. It verifies the hypothesis that people were actually holding back to upgrade until Google Maps was available.”